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Offline uwscsi  
#1 Posted : 27 March 2008 13:02:48(UTC)
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uwscsi


Joined: 27/03/2008(UTC)
Posts: 4
Location: ,
Hello!

I have an old transformator 6177, serial 201775.
I suppose it is around 30 years old.

Anyway I had a fault on the trafo and measured it to be a broken wire in the live terminals. The problem is fixed, but I am still wondering what the part on the picture is and what the purpose of the part are.

Can anyone help me?


www.dammann.no/Trafo.JPG
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Offline Guus  
#2 Posted : 27 March 2008 13:15:28(UTC)
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Guus

Netherlands   
Joined: 13/10/2004(UTC)
Posts: 2,616
Hi Ronny,

Welcome to the forum SmileEnjoy your time here.

The part on your picture is a thermal fuse.

Kind regards
Guus
Kind regards,
Guus
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Offline uwscsi  
#3 Posted : 27 March 2008 13:24:39(UTC)
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uwscsi


Joined: 27/03/2008(UTC)
Posts: 4
Location: ,
Many thanks for your quick and prompt answer.
Nice to know what I am repairing...
I haven't seen this kind of thermal protecting before :)

Anyway, It seems like the cable wired around the ceramic piece is broken.
Is it possible to obtain this kind of parts to day?
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Offline charles Sharpe  
#4 Posted : 27 March 2008 14:31:10(UTC)
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charles Sharpe


Joined: 21/09/2006(UTC)
Posts: 1,432
Location: NORFOLK UK
Hello Ronny.

Welcome to the forum you will get lots of help they are all a clever bunch of guys/ gal's.
CHARLES SHARPE
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Offline steventrain  
#5 Posted : 27 March 2008 21:28:33(UTC)
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steventrain

United Kingdom   
Joined: 21/10/2004(UTC)
Posts: 31,697
Location: United Kingdom
Welcome to the forum, Ronny.
Large Marklinist 3- Rails Layout with CS2/MS2/Boosters/C-track/favorites Electric class E03/BR103, E18/E118, E94, Crocodiles/Steam BR01, BR03, BR05, BR23, BR44, BR50, Big Boy.
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Offline intruder  
#6 Posted : 27 March 2008 23:44:10(UTC)
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intruder

Norway   
Joined: 16/08/2006(UTC)
Posts: 5,382
Location: Akershus, Norway
Velkommen til oss, Ronny

Maybe not so easy to find such a part. It may be replaced with a PTC resistor.
Your transformer is the same as 6117, 30VA, but has a different connector.
6177 was made <s>in 1968 only</s> from 1962 to 1968.

A suitable PTC could be a PolySwitch TR250-145, max. current 3,0 A or a LVR 025S, max 3,5 A.
Another is BC Components, typ 663 54913, 3,5 A. They also have a 2,2 A type, 662 53213, but maybe 2,2 A is a little bit "too quick".

They are available from ELFA. They have a shop in Oslo. See http://www.elfa.se/no/index1.html
Best regards Svein, Norway
grumpy old sod
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Offline WelshMatt  
#7 Posted : 28 March 2008 01:26:32(UTC)
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WelshMatt


Joined: 06/10/2006(UTC)
Posts: 1,345
Location: ,
Can you buy fuse wire and rebuild it? I managed to do that with a dead laptop PC a week or so ago.
Matt from Wales.

When you pay Range Rover prices, don't accept Lada quality
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Offline uwscsi  
#8 Posted : 28 March 2008 10:55:14(UTC)
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uwscsi


Joined: 27/03/2008(UTC)
Posts: 4
Location: ,
Thanks for your splendid feedback. I found out that we actually have different kinds of thermal fuses in our stock at the Naval base. I will most likely acquire one today and see if it solves my technical problem.

So, the trafo is actually around 40 years old... I guess most of my tracks are the same age as well... not bad :-)
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